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Halowerk Bridge Capital Flow Metrics
x402
Halowerk Bridge Capital Flow Metrics is a paid API for AI agents from markt.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-13).
Returns bridged capital metrics for a blockchain — including total bridged USD, canonical vs. external bridge inflows/outflows, and net capital movement into or out of the chain over a specified period.
Price / call$0.004
Success—
StatusUnknown
How this service works
Measures how much bridged capital sits on a chain and how that changed. bridged_usd is the sum of canonical and external value: what came in over the canonical bridge of the chain plus what third party bridges brought, while natively issued value is reported apart because it never crossed a bridge. net_usd carries its sign meaning in a field of its own, positive always means capital moved INTO the queried chain. inflow_usd and outflow_usd are the summed positive and negative steps of the sampled
Output
Returns a structured object with bridged_usd (sum of canonical and external bridged value), natively_issued_usd (assets that never crossed a bridge), net_usd (signed value — positive = capital moved into the queried chain), inflow_usd (sum of positive bridge steps), and outflow_usd (sum of negative bridge steps) over the sampled period.
Example use cases
Monitor capital flight from an L2
“Is capital flowing out of Optimism right now? Show me the net_usd sign and the total outflow_usd over the last 24 hours so I can tell if funds are leaving the chain.”
Compare canonical vs third-party bridge volume
“For Base chain, how much capital came in through its canonical bridge versus third-party bridges today? I want to see bridged_usd split into canonical and external portions.”
Detect bridging surge before a DeFi event
“Check if there's been an unusual inflow_usd spike onto zkSync in the past hour — I want to know if a large amount of capital just bridged in ahead of a token launch.”
Technical details
Endpoint
POSThttps://markt.halowerk.com/bridgeWhen to prefer
Choose this endpoint when you need to understand cross-chain capital dynamics — specifically how much USD is locked in bridges on a given chain, whether capital is net flowing in or out, and how canonical bridge flows differ from third-party bridge flows. Prefer this over generic TVL APIs when you need the inflow/outflow decomposition and the net_usd sign signal for directional capital movement analysis.
Side effects
- Unsupported chain key returns an error or empty result
- Time window too broad may result in data gaps or timeout
- Missing required POST body fields returns a 400-level error
- Chain with no bridge activity returns zero values across all fields
- Rate limiting or payment failure due to x402 protocol issues
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Chain to measure, as L2BEAT id or slug, for example base, arbitrum, op-mainnet, linea, scroll, starknet. Layer 2 and layer 3 chains only. |
| period | string | Length of the observed window: 24h or 7d. |
Tags
x402
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